Facsimile and static presentation processing – Facsimile – Reduced time or bandwidth for static image communication
Patent
1989-04-04
1990-08-07
Coles, Jr., Edward L.
Facsimile and static presentation processing
Facsimile
Reduced time or bandwidth for static image communication
358461, 358456, 358464, H04M 140
Patent
active
049472674
ABSTRACT:
An image reading apparatus has a CCD sensor for scanning an original image and outputting an analog image signal, an A/D converter for converting the analog image signal output from the CCD sensor into multi-value data consisting of a plurality of bits in units of pixels, and a selector for changing the number of bits of the multi-value data output from the A/D converter.
REFERENCES:
patent: 4578718 (1986-03-01), Yamaguchi
patent: 4698688 (1987-10-01), Ochi et al.
Masaki Hisaji
Takaki Hideo
Canon Kabushiki Kaisha
Coles, Jr. Edward L.
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